Malicious PDF — malware analysis report

Static analysis result for SHA-256 16ae75935a7db89f…

MALICIOUS

PDF

35.2 KB Created: 2021-07-06 09:05:31 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 8a3abd562ffc6b90c000a14485c15fd7 SHA-1: 46522199d8bf86c61e3ada79267e11f9a97aa922 SHA-256: 16ae75935a7db89fcd0559e8e681bc0029ef0d19d00003a8a8c07929e92cfca9
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier. The file routes users through malicious redirector infrastructure and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector high PDF_GAME_HACK_REDIRECT_LURE
    PDF's clickable action targets a redirector of the form /app/<id>/<slug>-game-hack — the landing-page shape of a large SEO 'free spins / generator / game hack' lure family that funnels victims through rotating disposable hosts to a malware/scam payload. The multi-link variants also trip ML/link-farm rules; this catches the single-link variants that otherwise score clean.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • External URI info PDF_URI
    PDF contains an external URL action
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL http://netcdn.tw/app/406889139/coin-master-hack-tool-v1-9-download-free-pc-game-hack PDF link annotation
    • http://perpustakaan.rajawali.ac.id/senayan8/repository/coin-master-spin-link-today-2021_GM406889139.pdfIn PDF document text
    • http://perpustakaan.rajawali.ac.id/senayan8/repository/how-to-get-minecraft-dungeons-for-free_GM479516143.pdfIn PDF document text
    • http://perpustakaan.rajawali.ac.id/senayan8/repository/coin-master-hack_GM406889139.pdfIn PDF document text
    • http://perpustakaan.rajawali.ac.id/senayan8/repository/coin-master-app-hack_GM406889139.pdfIn PDF document text
    • http://perpustakaan.rajawali.ac.id/senayan8/repository/how-to-hack-roblox-accounts-for-robux_GM431946152.pdfIn PDF document text
    • http://perpustakaan.rajawali.ac.id/senayan8/repository/coin-master-link-spin_GM406889139.pdfIn PDF document text
    • http://perpustakaan.rajawali.ac.id/senayan8/repository/coin-master-key-free-spin_GM406889139.pdfIn PDF document text
    • http://perpustakaan.rajawali.ac.id/senayan8/repository/how-do-you-get-free-roblox-skins_GM431946152.pdfIn PDF document text
    • http://perpustakaan.rajawali.ac.id/senayan8/repository/free-robux-no-human-verification_GM431946152.pdfIn PDF document text
    • http://perpustakaan.rajawali.ac.id/senayan8/repository/spin-coin-master-free_GM406889139.pdfIn PDF document text
    • http://perpustakaan.rajawali.ac.id/senayan8/repository/roblox-gift-card-for-free_GM431946152.pdfIn PDF document text
    • http://perpustakaan.rajawali.ac.id/senayan8/repository/optifine-mcpe_GM479516143.pdfIn PDF document text
    • http://perpustakaan.rajawali.ac.id/senayan8/repository/hack-robux_GM431946152.pdfIn PDF document text
    • http://perpustakaan.rajawali.ac.id/senayan8/repository/how-to-get-free-spins-on-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://perpustakaan.rajawali.ac.id/senayan8/repository/free-roblox-accounts-with-robux-that-work-not-banned_GM431946152.pdfIn PDF document text
    • http://perpustakaan.rajawali.ac.id/senayan8/repository/coin-master-free-spin-link-today-2021_GM406889139.pdfIn PDF document text
    • http://perpustakaan.rajawali.ac.id/senayan8/repository/free-free-robux_GM431946152.pdfIn PDF document text
    • http://perpustakaan.rajawali.ac.id/senayan8/repository/free-robux-sirws_GM431946152.pdfIn PDF document text
    • http://perpustakaan.rajawali.ac.id/senayan8/repository/coin-master-free-pet-food_GM406889139.pdfIn PDF document text
    • http://perpustakaan.rajawali.ac.id/senayan8/repository/free-spins-coin-master-without-survey_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_002_off000031c7.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x31C7 22404 bytes
SHA-256: be6620553140e7a9109709a7e2ea57683ec6a968a408ed215117bc3bba7c0085
font_01_sfnt_off000063c1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x63C1 19308 bytes
SHA-256: fa43116c370bdb4d48683ed39b22eac62c114741e11a3318869e145fb497b5ab

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